Hydrocarbon lantern



II n 924E Ucit. 14

R. T. GRADY HYDROCAHBON LANTERN filed July 22. 1920 fjim ,IIIIIIIII INVENTUR BY MM ATTORNEYS RICHARD T. GRADY, SAN DIEGO, CALIFORNIA.

nxnaooannon LANTERN.

Application filed. July 22,

To all whom it may concern:

Be it known that I, RICHARD T. GRADY, a citizen of the United States, and resident of San Diego, county of San Diego, and State of California, have invented a certain new and useful Improvement in Hydrocarbon Lanterns, of which the following is a specification.

My invention relates to that class of lanterns which are designed to utilize hydro- I carbon under pressure for illuminating pur poses in a portable lantern. It has for its object to provide a new and useful form of receptacle or container tank.

Devices of this character with which I am familiar are subject to the objectionsthat the tanks are provided with a filler plug of the usual construction and it is necessary before they can be used for illumination to. pump up the pressure in the container tank. This necessitates either carrying a pump about twelve inches long or attaching it to the receptacle. This is not only unsightlybut it necessitates a good deal of work in the construction of the container.

In my invention I have provided a construction in which thepump itself operates as a filler plug as well as a pump and therefore provides for the complete concealment of the pump inside of the container, thus entirely doing away with the unsightly appearance caused by attaching the pump to the exterior of the container and entirely doing away with the necessity of carrying a pump.

My means of accomplishing the foregoing objects may be more readily understood by having reference to the accompanying drawings which are hereunto annexed and are a part of this specification in which Fig. 1 is a perspective view partly in section of a hydrocarbon lantern constructed in accordance with my improvement.

Fig. 2 is a vertical sectional view of the combined pump and filler plug.

Fig. 3 is a detail view in section of the check valve construction I employ.

Similar reference numerals refer to similar parts throughout the entire description.

As shown in the drawings, the lantern comprises a base 1 which is the container for the liquid. This container is provided with an opening 2 by which it may be filled with the gasoline; an annular lip 14 is formed on the edge-of this opening. The

1920.. Serial No. 398,234.

opening is closed by my improved pump and filler opening cap 3. As more clearly seen in the sectional view, this pump comprises a cylinder I in which is mounted a suitable piston 5 actuated by a piston rod 6, the end of which extends out through a cap 7 which closes the. outer end of the cylinder I, and is provided with a suitable button 8 for manual operation.

The cap 7 is provided with internal screw threads 9, which engage mating screw threads out upon the upper end of the cylinder 4, a peripheral flange or shoulder 10 being provided which is cast or formed on the exterior wall of the cylinder 4; and is adapted to be engaged by a cap 11 which fits over the cylinder 4. This cap 11 is provided with a downwardly depending peripheral flange, the exterior surface of which are milled as at 12. It is also provided with internal threads which are fitted to external threads 13 upon an annular lip 14 which is secured to the opening 2 by brazing, or any other suitable or convenient means of fastening so that it is airtight, may be employed.

Upon the top of the annular lip 14: and. intermediate the lower surface of the shoulder 10, I mount a gasket 15 formed of suitable elastic and compressible material. At the lower end of the cylinder 4 I provide a suitable check valve to seal the lower end of the pump so that the air pressure upon the liquid cannot force the latter out of the container through the pump.

As shown in the drawings, it consists of a valve 16, the upper end of which is provided with a recess 17 in which is inserted a cork 18. The valve is provided with a reduced stem or neck 19. This stem or neck is surrounded with a coil spring 20 which bears against the shoulder 21 on the valve 16.

A suitable valve seat 22 is provided with an external thread 23 upon which is mounted a cap 24 which encloses the check valve parts and which is provided with an opening25 at its lower end, and an an nular recess 26 in which is mounted the coil spring 20, the opening serving as a guide for the reduced neck or stem 19 of the valve 16, and thus to keep this element in alignment with the valve seat 23 at all times when the cap 24: is in position.

A port of passage 27 is provided in the side '7 wall of the cap 24 for the egress of the air from the interior of the cylinder 4:.

e The operation of the device is as follows:

, When the container 1 has been filled to the desired level with the gasoline, the

V lip 14 and the lower surface of the shoulder 10, thusr'eifectuallysealing and making an air-tight joint.

It is apparent from the foregoing that it this was all'that was done, the air would quickly escape from the interior cylinder but this is 'preventedjbymeans of the check valve t the bottoin' of-the cylinder 4 for the tension of the'ooil spring, operates to seal the cork 1'8 tightly against the'va'lve seat," 14, and in'this manner efl'ectually prevents the escape of the air although the spring yields without diificulty and permits the entrance of the-air when the pump is operated,

Obviously, the container 1 is provided i'fwi't h'as uitable valve 28 leading to a burner 29" which is provided with mantles 30 of a the usual construction, the burner being 30 m untedinside of a cylinder 31 preferably formed'of mica which is held in position I means of a ventilated cap 32 which -latter is provided with a suitable handle 33 forcarrying, the whol'eforminga very desirable and compact portable hydrocarbon t lamp, itbeing apparent that the provision of the combined filler opening plug and m ntirely obviates th .dangerfoftthe pump being misplaced or lost since it is always at hand whenever additional pressure is required for the light. 7

Furthermore, it will be obvious that since it istheld in alignment for use, by being secured to the container, that only one hand will be required for pumping in order to raise air pressure; also that it is not in any sense of the word unsightly.

Having described my invention what I regard as new and desire to secure by Letters Patent is:

In the devices of the character described, the combination with a lantern provided with a liquid container, having a filler opening therein, an annular lip surrounding said opening, a pump which forms a filler opening, plug to close said filler opening, said pump comprising a cylinder, a peripheral flange udjacent one end"thereof, threads out upon said annular lip, a cap provided with a downwardly depending flange having internal'threads which engage the threadson said annular lip, cap mounted upon the outer end of cylinder, a piston mounted in said-cylinder, a rod to actuate said piston, theend of which extends outwardly through said cap which is secured to the cylinder, a peripheral flange adjacent one end of the cylinder, a gasket 'mounted intermediate said flange and the top of said annular lip and means to seal the lower end of the pump to prevent the liquid being forced out of the container.

In testimony whereof, I have signed the foregoing specification.- V

RICHARD T. GRADY. 

